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RCD and AC DC Leakage Detection Sensors

Pulished on Aug. 11, 2021

Since electricity has become popular, the energy benefits it has brought can be described as overwhelming. But there is no absolutely perfect thing in the world, and so is the power system. Since the popularity of power, the endless leakage incidents have become a major concern in power production. Human wisdom lies in the ability to find ways to solve problems when they encounter problems, so the safety of preventing electric shock and leakage has entered the practical stage in the mid-century, and the research and development measures taken to address leakage problems have greatly reduced personal electric shocks and electrical equipment. Therefore, countries all over the world attach great importance to the research of leakage protection.


Among them, the two "heritors" that have to be mentioned are RCD (Residual Current Device) and ACDC leakage sensor. Their appearance greatly improves the safety of electricity production, industrial production and household appliances, and greatly reduces the loss of financial, human and material resources. It is conceivable that their appearance will have a great impact on the power industry. So today we will discuss more information about RCD (Residual Current Device) and ACDC leakage sensors.The two are particularly easy to confuse, many people also call the leakage sensor as RCD residual current device detector, etc.


What is RCD? Residual Current Device (RCD) is a leakage protection device. Leakage protection device is a kind of low-voltage safety protection electrical appliance, its functions are as follows:

1. Used to prevent electric shock accidents caused by leakage;

2. It is used to prevent fire and equipment burning accidents caused by electric leakage;

3. Used to detect and cut off various one-phase ground faults;

4. Some leakage protection devices can also be used for overload, overvoltage, undervoltage and phase loss protection.


The working principle of RCD: When electrical equipment leaks, it will present abnormal current and voltage signals. The leakage protection device detects this abnormal current or abnormal voltage signal and processes the signal to prompt the actuator to act. With the help of the switchgear, the power supply is quickly cut off to implement leakage protection. The leakage protection device acting according to the fault current is a current-type leakage protection device, which is based on the fault voltage. The action is the voltage type leakage protection device. In short, RCD plays the role of controlling the switch.


The ACDC leakage current sensor is familiar to everyone. The ACDC leakage current sensor is a kind of AC micro current, DC micro current that is measured according to the working principle of transformer electromagnetic isolation and magnetic modulation, which converts the measured AC micro current and DC micro current into DC current, DC voltage and isolates the output standard analog signal or Digital signal device. With the characteristics of miniaturization, digitization, intelligence, multi-function, systemization, etc., it not only promotes the transformation and upgrading of traditional industries, but also provides production safety. In general, it plays a role in monitoring and reading the leakage current.


Whether it is RCD (Residual Current Device) or ACDC leakage sensor, it greatly improves the safety in the production process. In line with the sense of responsibility for production safety, our ACDC leakage sensors are always active in markets around the world! If you have any questions about RCD and ACDC leakage sensors, please contact us! You can also visit our website: www.ivy-metering.com


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